2012 Water Works Summary Report

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1 2012 Water Works Summary Report Large Municipal Residential Systems O. Reg. 170/03, Sched. 22; O. Reg. 249/03, s. 24; O. Reg. 253/05, s. 18. v.1.1

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3 City of Greater Sudbury Table of Contents EXECUTIVE SUMMARY... I SECTION 1-LEGISLATIVE AND REGULATORY REQUIREMENTS O.REG.128/04 CERTIFICATION OF DRINKING-WATER SYSTEM OPERATORS O.REG. 242/05 COMPLIANCE AND ENFORCEMENT O.REG.172/03 DEFINITIONS OF DEFICIENCY AND MUNICIPAL DRINKING-WATER SYSTEM O.REG.171/03 DEFINITIONS OF WORDS AND EXPRESSIONS USED IN THE ACT O.REG.170/03 DRINKING-WATER SYSTEMS O.REG.248/03 DRINKING-WATER TESTING SERVICES O.REG.169/03 ONTARIO DRINKING-WATER QUALITY STANDARDS... 3 SECTION 2 PLANT SPECIFIC REVIEW PLANT SPECIFIC REQUIREMENTS..4 SUDBURY DRINKING WATER SYSTEM - WANAPITEI....4 SUDBURY DRINKING WATER SYSTEM - DAVID STREET..7 SUDBURY DRINKING WATER SYSTEM - GARSON...10 DOWLING DRINKING WATER SYSTEM. 13 BLEZARD VALLEY / CAPREOL DRINKING WATER SYSTEM FALCONBRIDGE DRINKING WATER SYSTEM...22 ONAPING/LEVACK DRINKING WATER SYSTEM...25 VERMILLION DISTRIBUTION SYSTEM.. 28 March 11, 2012 City of Greater Sudbury

4 City of Greater Sudbury i Executive Summary The production and delivery of potable water in Ontario is regulated by the Ministry of Environment (MOE) under the Safe Drinking Water Act, 2002, S.O. 2002, c. 32 (formerly the Ontario Water Resources Act). Regulated systems must meet the requirements of the Safe Drinking Water Act, 2002, S.O. 2002, c. 32 and its regulations. Most notably: the Drinking Water Systems Regulation O.Reg. 170/03 sets out treatment and testing requirements for all categories of regulated water systems; O.Reg. 169/03 covers the Ontario Drinking Water Quality Standards; and O.Reg 128/04 covers the necessity for Certification of Drinking Water System Operators and Water Quality Analysts. Since the implementation of the Act, several amendments to O. Reg. 170/03 have taken place. There are amendments requiring additional resources and costs, such as the Community Lead Testing initiative, while others streamlined legislative requirements to make the new regulations feasible for the vast majority of municipalities. Among other obligations, O.Reg. 170/03 prescribes the need for all owners of licensed water works to produce an Annual Summary Report as indicated in Schedule 22. This Summary Report is filed annually for the previous calendar year (January 1 st through December 31 st ) and must contain the following information: List of requirements of the Safe Drinking Water Act (SDWA), the regulations, the system s approval, drinking water works permits and the municipal drinking water license; Any orders applicable to the system that were not met at any time during the period covered by the report. If any failures were identified, specify the duration of the failure and describe the measures taken to correct the situation; Summary of quantities and flow rates of the water supplied during the reporting period, including monthly averages and maximum daily flows; and A comparison of the summary of quantities and flow to the rated capacities and flows approved in the systems approval, drinking water works permit or municipal drinking water license. An Annual Report, to fulfill Section 11 of Ontario Regulation 170/03, has been completed separately and details the drinking water quality of all of the CGS owned and operated drinking water systems. This annual report is available for viewing on the City of Greater Sudbury's website ( March 11, 2012 v.1.1 Executive Summary

5 City of Greater Sudbury ii and notice has been posted that those that do not have access to a computer can use a computer at any of the CGS Citizen Service Centers to view. The City of Greater Sudbury is listed as the Owner of five large municipal, residential drinking water systems and one independent distribution system. The one distribution system (Vermillion) receives its water from a donor system which is operated by Vale. The City of Greater Sudbury is supplied from this donor system wherein water is purchased by the CGS from Vale and supplied to consumers through a CGS owned distribution system. The following reports are written to comply with the Condition that each of these facilities produces an Annual Summary Report as per Schedule 22 of O. Reg. 170/03. Table 1 provides a summary of the various water systems throughout the City. Table 1 - Overview of the City s Water Systems Name Owner Type of Facility Source of Water Community Serviced Sudbury Drinking Water System - Wanapitei Sudbury Drinking Water System - David Street City of Greater Sudbury Surface water conventional treatment plant and Ultraviolet irradiation, Fluoridation, Corrosion control added, Distribution system Surface water Membrane Filtration and Ultraviolet irradiation, Fluoridation, Corrosion control added, Distribution system Wanapitei River Ramsey Lake Sudbury, Coniston, Wanapitei, Markstay, Garson Sudbury Sudbury Drinking Water System - Garson Wells with disinfection, Fluoridation, Distribution system Groundwater Garson Dowling Drinking Water System City of Greater Sudbury Wells with disinfection and Ultraviolet irradiation, Fluoridation, Distribution system Groundwater Dowling Blezard Valley/ Capreol Drinking Water System City of Greater Sudbury Wells with disinfection and Ultraviolet irradiation, Fluoridation, Corrosion control added for supply to Capreol, Distribution system Groundwater Valley East, Azilda, Chelmsford & Capreol March 11, 2012 v.1.1 Executive Summary

6 City of Greater Sudbury iii Falconbridge Drinking Water System City of Greater Sudbury Wells with disinfection, Fluoridation, Corrosion control added, Distribution system Groundwater Falconbridge Onaping /Levack Drinking Water System City of Greater Sudbury Wells with disinfection, Fluoridation, Corrosion control added, Distribution system Groundwater Onaping & Levack Vermillion River Water Treatment Plant Vale Surface water conventional treatment plant, Fluoridation River Vermillion Distribution System Vermillion Distribution System City of Greater Sudbury Distribution System Vermillion River WTP Lively, Naughton, Whitefish, Copper Cliff, Walden Industrial Park Due to the significant impact of the Drinking Water Protection Regulation and continuing Source Water Protection legislation, virtually all of the City s water works have had to undergo some level of upgrading. It should not be assumed that these upgrades are the result of any detected incidents of poor water quality. The upgrades at the City water works are necessary to reduce the risk of potable water contamination as deemed necessary by the MOE. The level of acceptable risk is stipulated through mandatory compliance with O. Reg. 170/03. The last several years have seen a number of upgrades at most of our water facilities. It is important to understand that this is part of the required process of the Regulations and the MOE s statutory Standard of Care to ensure all citizens have access to and receive safe drinking water. The regulation stipulates that water works owners will continually monitor water works performance, and review levels of treatment versus current standards and emerging technologies. The Ministry of the Environment is responsible for the enforcement of regulations and conducts regular, announced and unannounced, inspections of all of our facilities every year. MOE inspections grading has given the CGS water systems a 100 for all of our systems through the 2012 inspection regimen. The public expects that responsible Owners will be diligent in their duty to care for public water supplies. The Community Lead Testing Initiative was mandated by the MOE in 2007 and falls under O. Reg. 170/03, Schedule Although there have been challenges in garnering enough volunteers for the program, the City is moving forward with the initiative. The City has completed ten periods of lead sampling to date. Results have been positive and demonstrated that lead is not a concern for the City of March 11, 2012 v.1.1 Executive Summary

7 City of Greater Sudbury IV Greater Sudbury. There have been issues in the OnapingiLevack system, which has seen considerable improvement with the recent corrosion control additive and ph adjustment measures. To date, 2830 samples have been collected throughout all of our Drinking Water Systems. There have been a total of 26 private residences or commercial establishments and one distribution sample in excess of the standard, representing less than 1 of all samples. The initiative continued through 2012 and for 2013, the City will be able to exercise the new direction the MOE has adopted for lead sampling requirements. That is, all systems that have demonstrated less than 10 of one half the Allowable Concentration (MAC) will no longer be required to sample in private residents or commercial establishments. Drinking Water Systems that have a population over 50,000 will continue to be required to test for Lead, but at a reduced number, providing the same criteria as listed above for half MAC have been met. The City is well organized to manage the existing water works systems. Staff have been pro-active to ensure all necessary measures are taken to achieve compliance with the Regulations and the various Drinking Water Permits and Licenses. The water works owned and operated by the City have been managed with the standard of care expected by the public and as legislated by the government. All necessary upgrades are being planned and implemented in accordance with applicable standards. Reviewed by: Approved by: Gary Co in Water Supervisor III Date ~ 19 ;2nJ3. Nick Benkovich Director, Water and Wastewater Services March 11,2012 v.1.1 Executive Summary

8 City of Greater Sudbury 1 SECTION 1 LEGISLATIVE AND REGULATORY REQUIREMENTS Regulated systems must meet the requirements of Ontario's Safe Drinking Water Act, 2002 and its regulations. Most notably, the Drinking Water Systems Regulation sets out treatment and testing requirements for all categories of regulated water systems, including non-municipal and municipal nonresidential operations. Related regulations made under the Act: 1.1 O.REG. 128/04 CERTIFICATION OF DRINKING-WATER SYSTEM OPERATORS AND WATER QUALITY ANALYSTS This Regulation was filed on May 14, 2004 (Last amendment: O.Reg. 466/10). Section 29 lists Operator training requirements and the number of training hours required for operators. Class IV Water Treatment Operators will require 14 hours of continuing education with an additional 36 hours of on-the-job practical training, for a minimum of 50 hours total of annual training. The continuing education that is used to meet the training requirements must be approved by the MOE Director using criteria which includes the following: a. The training course must have documented learning objectives. b. The training course must be planned and be provided by a qualified training provider. c. The training course must include a means to verify that the participants have learned the material covered in the course d. The training course must cover subject matter that is directly related to the duties typically performed by an operator. The on-the-job practical training that is used to meet the training requirements must meet a criterion that includes the following: a. The training must have documented learning objectives. b. The training must be provided by a trainer with expertise in the subject matter that is being covered. c. The training must be in respect of subject matter that is directly related to the duties typically performed by an operator Note: The annual number of hours of training set out in Table 1 may be averaged over the three years during which an operator's certificate is valid but shall not be reduced or prorated for an operator who is employed on a part-time basis.

9 City of Greater Sudbury 2 Table 1 Annual Training for Operators Type and Class of Subsystem Where the Operator is Employed Limited Groundwater or Limited Surface Water Class I Water Treatment or Class I Distribution or Class I Distribution and Supply Class II Water Treatment or Class II Distribution or Class II Distribution and Supply Class III Water Treatment or Class III Distribution or Class III Distribution and Supply Class IV Water Treatment or Class IV Distribution or Class IV Distribution and Supply Training Requirements 7 hours or more of continuing education, with the remaining hours to at least the minimum total as onthe-job practical training 7 hours or more of continuing education, with the remaining hours to at least the minimum total as onthe-job practical training 12 hours or more of continuing education, with the remaining hours to at least the minimum total as onthe-job practical training 14 hours or more of continuing education, with the remaining hours to at least the minimum total as onthe-job practical training 14 hours or more of continuing education, with the remaining hours to at least the minimum total as onthe-job practical training Minimum Total Hours O. Reg. 128/04, s. 29, Table 1.2 O. REG. 242/05 COMPLIANCE AND ENFORCEMENT This Regulation (Last amendment: O.Reg. 328/08) lists the requirements for inspections. What to do when deficiencies and contraventions are found. This regulation also deals with enforcement, investigations and notices required once investigations have been completed. 1.3 O. REG. 172/03 DEFINITIONS OF "DEFICIENCY" AND "MUNICIPAL DRINKING- WATER SYSTEM" Ontario Regulation 172/03 (Last Amendment: O.Reg. 329/08), provides definitions of words and expressions within the Safe Drinking Water Act and associated Regulations. 1.4 O. REG. 171/03 DEFINITIONS OF WORDS AND EXPRESSIONS USED IN THE ACT Ontario Regulation 171/03 (Last amendment: O.Reg. 324/08) - Provides definitions of words and expressions within the Safe Drinking Water Act and associated Regulations. 1.5 O. REG. 170/03 DRINKING-WATER SYSTEMS This Regulation was filed in 2004 (Last amendment: O.Reg. 420/12). This regulation outlines the requirements for: 1) Types of Drinking Water Systems

10 City of Greater Sudbury 3 2) Required reports (annual, summary reports) 3) Retention of records 4) Treatment equipment requirements 5) Types of Treatment 6) Operational Checks, Sampling and Testing 7) Use of accredited laboratories 8) Maintenance and Operational Checks 9) Microbiological Sampling and Testing 10) Chemical Sampling and Testing 11) Reporting Adverse Test Results and Other Problems 12) Corrective Action 13) Engineers' Reports 14) Inorganic Parameters 15) Organic Parameters 1.6 O. REG. 248/03 DRINKING-WATER TESTING SERVICES Ontario Regulation 248/03 (Last amendment: O.Reg. 416/09) - Drinking-Water Testing Services is the regulation governing accredited laboratories that came into effect October 31, ) Lists systems that do not require drinking-water testing license 2) Lists prescribed tests of the Safe Drinking Water Act 3) Lists person(s) to do water quality analysis 4) Lists the types of tests that can be conducted for the sole purpose of carrying out research or Criteria for drinking-water testing services 5) Conditions of drinking-water testing license 6) Handling samples 7) Testing records 8) Laboratory qualifications and accreditation 1.7 O. REG. 169/03 ONTARIO DRINKING-WATER QUALITY STANDARDS Ontario Regulation 169/03 (Last amendment: O.Reg 327/08). This regulation sets out standards in Schedules 1, 2 and 3 as prescribed drinking-water quality standards. Included in this regulation, what is deemed as compliance standards.

11 City of Greater Sudbury 4 SECTION 2 - PLANT SPECIFIC REVIEW 2.1 Plant Specific Requirements This Section of the report provides details on measures taken by the City to ensure compliance with Terms and Conditions of the Certificates of Approvals or Licenses, Acts, Regulations or any MOE orders the systems may have been under during the reporting period. This section of the report also provides details on the specifics of the systems, any non-compliance issues along with actions taken by the City to rectify the situations, as well as flow data with comparison to allowable limits. This flow comparison is to allow for a basic overview of the systems performance and allows for review and planning of possible future expansions if required. A more detailed description of the water works is provided at the start of each sub-section. The description is provided for reference purposes only, and to ensure that the compliance measures remain in context. All non-compliance items and the corrective actions taken are summarized in table format and appended to the particular plant section in this report. The most recent Municipal Drinking Water License and Drinking Water Works Permit that was valid at the time of this report is also listed in the particular plant section. Sudbury Drinking Water System - Wanapitei DWS# Municipal Drinking Water License: Apr 20, 2010 Drinking Water Works Permit: Nov 3, 2011 Schedule C to DWWP Mar 30, 2010 The Wanapitei WTP is a surface water plant which draws water from the Wanapitei River. Proportionally, the plant supplies approximately 60 of the water for Sudbury; however, most of the water produced is delivered to New Sudbury, Coniston, Wahnapitae, Markstay, and parts of downtown. Garson, west of Falconbridge Rd. and O Neil Dr., is also supplied by this plant. The plant was constructed in the 1970 s at the onset of Regional Government. Since the original construction, the plant has undergone upgrading to enhance treatment efficiency, increase production, and to reduce energy costs. Completed projects in 2012 included: repairing Reactivator #1 at a cost of $35,000 as well as replacing UV lamps at a cost of $5,000. Capital improvements to various infrastructure projects totaled approximately $1,229,876.

12 City of Greater Sudbury 5 The water supply for the plant is the Wanapitei River. The raw water quality is reasonably reliable but is, however, subject to some change, which is typical of most rivers. The watershed area for the Wanapitei River is vast with much in its natural state. The river water quality varies depending on seasonal changes and local weather patterns. Some process parameters affected by these changes include: Temperature; Turbidity; and Colour. The changing raw water quality requires careful observation by the water plant operators to ensure necessary process and chemical adjustments are made to effectively treat the water. The Wanapitei WTP incorporates conventional technologies to treat the water. The raw water undergoes initial treatment with chlorine dioxide for taste and odor control and/or chlorine for pre-disinfection. Raw water is further subjected to chemical coagulation with alum to form a floc. The coagulated water passes through one of two settling tanks, referred to as reactivators, for the flocculation and sedimentation process. A polymer is added to assist with the sedimentation process. The water then passes through one of four, dual media, filter beds. The filtered water is treated with hydrated lime for ph /alkalinity adjustment; with chlorine to maintain disinfection; with fluoride to comply with Sudbury and District Health Unit requirements; and with polyphosphate to reduce corrosion in the distribution system. The final process is irradiation by ultraviolet light. The plant is designed to be capable of achieving, at all times, at least removal or inactivation of viruses by the time water enters the distribution system. The distribution system incorporates a large diameter concrete pressure pipe to deliver water to Sudbury and Coniston. The communities are networked with an extensive distribution system including numerous booster stations. The system pressure is regulated by the water level in the Ellis Water Reservoir. Most of the pipes in the distribution system are less than 50 years old and much of the system is plastic pipe. Water quality throughout the distribution system is monitored through regular sampling in accordance with O. Reg. 170/03.

13 City of Greater Sudbury 6 Non-Compliance with Act, Regulations, Order or Approvals Table 2 provides a summary of any requirements of the Act, Regulations, Orders, or Approval that the system failed to meet during the 2012 reportable period. Table 2 - Wanapitei Water Treatment Plant Item Non-Compliance Measure Taken to Ensure Compliance MOE Inspection Issues NONE N/A MOE Orders NONE N/A 2012 Adverse Water Quality Incident Report Table 3 provides details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre and the Sudbury and District Health Unit. Table 3 - Adverse Water Quality Incidents AWQI # Incident Parameter Result Unit of Corrective Action Corrective Date Measure Action Date /07/25 UV 0 mj/cm 2 Disinfectant restored/increased 2012/07/ /11/17 Background Overgrown CFU Resample/Re-test 2012/11/23 Annual Summary Table 4 provides a summary of the quantities of flow rates with a comparison to rated capacities as listed in the systems Municipal Drinking Water License during the 2012 reportable period.

14 City of Greater Sudbury 7 Table 4 - Annual Summary (Sudbury Plants) Total Wanapitei Water Treatment Plant Peak Total David Street Water Treatment Plant Peak January 862,476 27,822 38, , ,827 10,994 12, , February 592,116 20,418 21, , ,622 17,435 20, , March 744,239 24,008 26, , ,268 14,170 22, , April 772,606 25,754 27, , ,240 12,208 18, , May 846,275 27,299 31, , ,409 14,174 22, , June 863,645 28,788 33, , ,937 12,131 19, , July 943,279 30,428 33, , ,963 14,741 24, , August 878,000 28,323 32, , ,910 12,255 17, , September 823,268 27,442 32, , ,841 11,928 12, , October 799,829 25,801 27, , ,137 11,972 12, , November 725,336 24,178 27, , ,967 13,232 21, , December 723,848 23,350 28, , ,794 13,768 18, , Total 9,574,919 4,844,915 Sudbury Drinking Water System - David Street DWS# Municipal Drinking Water License: Apr 20, 2010 Drinking Water Works Permit: Nov 3, 2011 Schedule C to DWWP Mar 30, 2010 The David St. WTP is a surface water plant, which draws water from Ramsey Lake. Proportionally, the plant services approximately 40 of Sudbury, however, most of the water produced at the David St. WTP is normally delivered to the south, west and downtown areas of Sudbury. The plant is over 100 years old and has undergone numerous upgrades to meet changing needs. The plant completed retrofits with Zenon membrane ultrafiltration technologies and ultraviolet irradiation in 2004 to ensure the treatment system meets the requirements in O. Reg. 170/03. The plant is designed to be capable of achieving, at all times, at least removal or inactivation of viruses by the time water enters the distribution system.

15 City of Greater Sudbury 8 The water supply for the David St. WTP is Ramsey Lake. Although this lake is seen as an excellent source of raw water, development around the lake has compromised the security of this water source. Measures are being reviewed by City staff and the Provincial Source Water Protection Committee to maintain and improve the source water quality. The City is planning to have the David St. plant remain an integral part of the water works system for many years. For this reason the City has made a significant financial investment in the upgrading of this plant. Projects completed for 2012 included replacing 1 complete Primary and 1 complete Secondary ultrafiltration membrane trains at a cost of $659,756. Additional projects completed were replacements of three outlet valves, two treated pump check valves, UV lamps and the post chlorine analyzer at a total cost of $37,200. The distribution system supplied by the David Street WTP includes parts of downtown Sudbury, the south and west ends of Sudbury. In addition, the Ellis Reservoir is part of the distribution network for Sudbury. The Ellis Reservoir is a 36.4 million liter, dual cell, water storage facility that is also fed by the Wanapitei WTP. As is common with many older distribution networks, the Sudbury pipe system is prone to line breaks, complaints of discolored water and difficulties maintaining adequate chlorine residual. Watermain related capital projects undertaken in 2012 included various watermain repairs and replacements totaling approximately $1,051,273. Water quality throughout the distribution system is monitored through regular sampling in accordance with O. Reg. 170/03. Non-Compliance with Act, Regulations, Order or Approvals Table 5 provides a summary of any requirements of the Act, Regulations, Orders, or Approval that the system failed to meet during the 2012 reportable period. Table 5 - David Street Water Treatment Plant Item Non-Compliance Measure Taken to Ensure Compliance MOE Inspection Issues NONE N/A MOE Orders NONE N/A

16 City of Greater Sudbury Adverse Water Quality Incident Report Table 6 provides details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre and the Sudbury and District Health Unit. Table 6 - Adverse Water Quality Incidents AWQI # Incident Parameter Result Unit of Corrective Action Corrective Date Measure Action Date /06/02 Total Coliform 1 CFU/100 ml Resample/Re-test 2012/06/ /08/04 CT <20 calculated Disinfectant restored/increased 2012/08/ /09/02 Total Coliform /09/28 Total Coliform 1 CFU/100 ml CFU/100 ml Resample/Re-test 2012/09/04 Resample/Re-test 2012/09/29 Annual Summary Table 7 provides a summary of the quantities of flow rates with a comparison to rated capacities as listed in the systems Municipal Drinking Water License during the 2012 reporting period. Table 7 - Annual Summary Total Wanapitei Water Treatment Plant Peak Total David Street Water Treatment Plant Peak January 862,476 27,822 38, , ,827 10,994 12, , February 592,116 20,418 21, , ,622 17,435 20, , March 744,239 24,008 26, , ,268 14,170 22, , April 772,606 25,754 27, , ,240 12,208 18, , May 846,275 27,299 31, , ,409 14,174 22, , June 863,645 28,788 33, , ,937 12,131 19, , July 943,279 30,428 33, , ,963 14,741 24, , August 878,000 28,323 32, , ,910 12,255 17, , September 823,268 27,442 32, , ,841 11,928 12, , October 799,829 25,801 27, , ,137 11,972 12, , November 725,336 24,178 27, , ,967 13,232 21, , December 723,848 23,350 28, , ,794 13,768 18, , Total 9,574,919 4,844,915

17 City of Greater Sudbury 10 Sudbury Drinking Water System - Garson DWS# Municipal Drinking Water License: Apr 20, 2010 Drinking Water Works Permit: Nov 3, 2011 Schedule C to DWWP Mar 30, 2010 The Garson water works is a communal groundwater system consisting of three wells, and servicing the community of Garson. The three wells are: Garson Well No.2; Garson Well No.1; and Garson Well No.3. Garson Well No.2 is situated within a pumphouse on the east side of Falconbridge Highway at Spruce Street. The system includes a Variable Frequency Drive (VFD) vertical turbine well pump, disinfection with sodium hypochlorite and fluoride injection as mandated by the Sudbury and District Health Unit. There is no standby power at Garson Well No. 2. The City of Greater Sudbury operated the well pumphouse on behalf of Vale and now, as the sole owner/operator, the water is directly connected to the public distribution network. The other two wells in Garson, No. s 1 and 3, are situated on the south side of Falconbridge Road at Orell Street. The two wells are in close proximity to each other but are housed in separate buildings, both of which contain the vertical turbine well pumps. The discharges from the well pumps enter a common building which houses the disinfection and fluoride injection equipment. The wells underwent a full third party inspection and rehabilitation in 2012 at a cost of $27,510. The well supply historically provided very good quality water with no record of bacteriological contamination. During preparation of the First Engineers Report, in March 2001, a hydrogeological assessment was made of each of the wells. It was concluded that it is unlikely that any of the wells are under the direct influence of surface water. The raw water was therefore found to be in general conformance with the ODWS. Notwithstanding the historical good water quality, the aquifer used in the Garson well supply has a recharge area which includes the developed area of Garson. The hydrogeologists noted potential sources of contamination of the water supply that required further study and a plan to provide long-term protection of the groundwater sources. With direction from the Sudbury and District Health Unit and the Ministry of the Environment, the CGS committed to undertaking an

18 City of Greater Sudbury 11 extensive Groundwater Monitoring Program with an emphasis on monitoring Tetrachloroethylene, a known carcinogen. Four new monitoring wells were drilled in the area at a cost of $25,000 and sampling will be conducted by staff to augment historical data to ensure the safety of the water source and public. The community of Garson extends from Skead Road at the north to Garson-Coniston Road at the south. The pipe network is connected to the water supply from Sudbury at the intersection of Falconbridge Road and O Neil Drive West, therefore the community is serviced from the Sudbury Distribution system West of Penman Avenue. In the event that all of the three wells were to fail, the Garson system is connected to the Sudbury Distribution System by way of a pressure valve and would have water supplied from Sudbury. The pipe network is a combination of new and older pipes and frost penetration can be an issue in Garson. Water quality throughout the distribution system is monitored through regular sampling in accordance with O. Reg. 170/03. Non-Compliance with Act, Regulations, Order or Approvals Table 8 provides a summary of any requirements of the Act, Regulations, Orders, or Approval that the system failed to meet during the 201 reportable period. Table 8 - Garson Wells and Distribution System Item Non-Compliance Measure Taken to Ensure Compliance MOE Inspection Issues NONE N/A MOE Orders NONE N/A 2012 Adverse Water Quality Incident Report Table 9 provides details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre and the Sudbury and District Health Unit.

19 City of Greater Sudbury 12 Table 9 - Adverse Water Quality Incidents AWQI # Incident Parameter Result Unit of Corrective Action Corrective Date Measure Action Date /01/23 Pressure 17 psi No corrective actions needed 2012/01/ /02/24 Total Coliform /05/31 Total Coliform 13 CFU/100 ml CFU/100 ml Resample/Re-test 2012/02/27 Resample/Re-test 2012/06/04 Annual Summary Table 10 provides a summary of the quantities of flow rates with a comparison to rated capacities as listed in the systems Municipal Drinking Water License during the 2012 reportable period. Table 10 - Summary (Garson Wells) Total Garson Well #1 Garson Well #3 Peak Total Peak January 6, , , , , February 5, , , , , March 3, , , , April 4, , , , May 7, , , , , June 4, , , , , July 1, , , , , August 6, , , , , September 6, , , , , October 2, , , , November 6, , , , , December 3, , , , , Total 58, ,655

20 City of Greater Sudbury 13 Total Garson Well #2 Peak January 20, , , February 22, , , March 27, , , April 21, , , May 23, , , June 24, , , July 36,215 1,168 1, , August 22, , , September 24, , , October 38,824 1,252 1, , November 8, , , December 29, , , Total 299,352 Dowling Wells and Distribution System DWS# Municipal Drinking Water License: Apr 19, 2010 Drinking Water Works Permit: Nov 3, 2011 The Dowling water works is a communal groundwater system, which supplies water to the community of Dowling. The water works includes two wells with well pumphouses, a distribution network of in-ground piping and an elevated water storage tank. The entire water system was developed with subsidy from the MOE in the 1970 s. The ownership and operation of the water works was transferred to the Regional Municipality of Sudbury and it is now owned and operated by the City of Greater Sudbury. The Riverside well and pumphouse includes a vertical turbine supply pump, disinfection with gas chlorine, ultraviolet irradiation along with fluoride injection as mandated by the Sudbury and District Health Unit. The Lionel well and pumphouse has similar facilities plus a diesel generator for standby power. Both facilities have automatic valving to waste raw water for a few minutes upon start-up of a well pump. The water supply source for the Dowling wells is an unconfined aquifer of sand and gravel deposits located within the Onaping river watershed. Due to the unconfined nature of the soils and the proximity

21 City of Greater Sudbury 14 to the river, the MOE has characterized the water source as potentially groundwater under the direct influence of surface water (potentially GUDI). Studies were conducted in 2002 with the resulting submission of a GUDI study on July 1, This study was reviewed and accepted by the MOE and as a result, both wells were deemed to be GUDI with effective in situ filtration. As such, additional treatment and disinfection would be required. The prior recommendations of the consultant included that, while the wells have met the MOE criteria for potentially under the influence of surface water, adequate natural filtration of the water exists. Based on the conclusions by the MOE, the well systems have had ultraviolet irradiation added to enhance disinfection to comply with the treatment requirements of the ODWS. The distribution network in Dowling has been relatively reliable and is not exposed to as severe frost depths as other areas of the City. Further, the elevated water storage provides a measure of security to the water system in the event of power interruptions and watermain breaks. Water quality throughout the distribution system is monitored through regular sampling in accordance with O. Reg. 170/03. Non-Compliance with Act, Regulations, Order or Approvals Table 11 provides a summary of any requirements of the Act, Regulations, Orders, or Approval that the system failed to meet during the 2012 reportable period. Table 11 - Dowling Wells and Distribution System Item Non-Compliance Measure Taken to Ensure Compliance MOE Inspection Issues NONE N/A MOE Orders NONE N/A 2012 Adverse Water Quality Incident Report Table 12 provides details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre and the Sudbury and District Health Unit.

22 City of Greater Sudbury 15 Table 12 - Adverse Water Quality Incidents AWQI # Incident Parameter Result Unit of Corrective Action Corrective Date Measure Action Date /03/14 Total Coliform 4 CFU/100 ml Resample/Re-test 2012/03/16 Annual Summary Table 13 provides a summary of the quantities of flow rates with a comparison to rated capacities as listed in the systems Municipal Drinking Water License during the 2012 reportable period. Table 13 - Summary (Dowling Wells) Total Lionel Well Peak Total Riverside Well Peak January 4, , , , February 3, , , , March 5, , , , April 2, , , , May 5, , , , June 5, , , , July 8, , , , August 2, , , , , September 4, , , , October 3, , , , November 3, , , , December 2, , , , Total 51,811 87,977

23 City of Greater Sudbury 16 Blezard Valley /Capreol Well Supply DWS# Municipal Drinking Water License: Nov 3, 2011 Drinking Water Works Permit: Nov 1, 2011 Schedule C to DWWP Aug 5, 2011 In 2010, the Blezard Valley and Capreol well supply systems were considered to be one complete system as both of the systems are connected. As such, one Drinking Water System (DWS) number and one Municipal Drinking Water License and Works Permit has been assigned to the entire system. This report will identify the works by geographical area where appropriate. The Blezard Valley portion of the system is a multi-well groundwater system servicing the communities of Hanmer, Blezard Valley, Val Caron, McCrea Heights, Azilda and Chelmsford. Nine groundwater wells are situated throughout the Valley and each are located in well pumphouses. The communities are interconnected with distribution piping and three water storage tanks located in each of Val Caron, Azilda and Chelmsford. The water works were originally constructed by the MOE in the 1970 s then transferred to the Regional Municipality of Sudbury. With amalgamation, the ownership was transferred to the City of Greater Sudbury. All upgrades from the original MOE system were constructed by the City. Each well pumphouse contains a vertical turbine well pump, gas chlorine disinfection equipment and fluoride injection equipment as mandated by the Sudbury and District Health Unit. Some of the well pumphouses incorporate standby diesel generators, summarized as follows: Well A Deschene; Well B Kenneth; Well C Phillipe; Well D Frost; Well E - Notre Dame; and Well I I Well. The water supply source is a common groundwater aquifer characterized as a shallow sand and gravel aquifer. This well field extends approximately 7.5 km (west to east) from Val Therese to Hanmer. A preliminary hydrology study performed during the preparation of the First Engineers Report classified all

24 City of Greater Sudbury 17 of the wells as not under the direct influence of surface water. Due to the shallow nature of the aquifer and the lack of a confining clay layer the MOE requested further study. The GUDI study was submitted in August of An amended was received on February 23, The amended acknowledged the opinion of the hydrogeology study, which states that the wells are not GUDI. As such, no additional filtration is required and the wells may supply water provided they meet MOE Procedures for Disinfection of Drinking Water. The wells in the Valley system did not meet chemical disinfection CT (Concentration (mg/l) x Time (minutes)) requirements, therefore, all the wells were upgraded in 2007 to incorporate ultraviolet irradiation to deal with CT issues. As previously noted, the Valley well system is a relatively shallow aquifer and the community has developed extensively around the wells. Some of the wells are located immediately adjacent to residential homes, commercial establishments and major arterial roadways. The water quality is beginning to show the effects of urban storm drainage. Further, existing zoning by-laws appear inadequate to protect the wells from further development within the well capture zones. For these reasons, options are being considered to preserve the quality of the water over the long-term. Two new water wells were developed (Wells Q and R) and commissioned in 2012, increasing the capacity to supply the additional demands in Blezzard Valley. In addition to the two new wells, several of the Valley wells underwent a full third party inspection and rehabilitations in 2012 and a Groundwater Monitoring Program was established, all at a cost of $3,193,500. The distribution system in the Valley is very extensive and contains many areas with dead-ends. System pressure is regulated by the level of the three storage tanks situated in Azilda, Chelmsford and Val Caron. During the reporting period the City operated the distribution system with good control of the chlorine residuals. This is due in part to the age of the distribution network, and the good source of raw water quality. For 2012 several capital projects to replace or repair various watermains were completed at a cost of $300,000. The Capreol Well portion of the system draws water from two (2) wells to service the community of Capreol. The wells include: Well J; and Well M. In the event that these two wells fail and due to the fact that Capreol does not have backup water storage facilities, the Blezard Valley wells can supply water through the Capreol Boosters located onsite at M

25 City of Greater Sudbury 18 well. This system, started in 2004, was completed and commissioned in 2007, ensuring a continued water supply to Capreol. The source of water for the Capreol wells is groundwater. Wells J and M draw from a common unconfined aquifer comprised mostly of sands and gravels. Although neither of the wells have any record of bacteriological contamination, the unconfined nature of the aquifer required these wells to be characterized as potentially groundwater under the influence of surface water (potentially GUDI). Wells J and M are located within approximately 30 meters of each other on the east side of Greens Lake and west of MR 84. Wells J and M are housed in separate well houses and have vertical turbine well pumps. A common discharge from the wells undergoes treatment in the form of disinfection by gas chlorination, ultraviolet irradiation, and fluoridation, as mandated by the Sudbury and District Health Unit. Corrosion control for the system is accomplished with the addition of a polyphosphate. Both facilities have automatic valving to waste raw water for a few minutes upon start-up of a well pump. Standby power with an automatic transfer switch for Wells J and M is available from a diesel generator located in Well M pumphouse. A previous for Capreol required further hydrogeological studies to be conducted in Capreol to determine if the wells were in fact under influence of surface water. The results of the study were necessary to determine if a filtration system would be required to ensure that the water quality remains in compliance with the ODWS at all times. The studies, referred to as GUDI studies, were completed for Wells M and J and submitted to the MOE on June 30, The response from a review by MOE found these wells to be potentially under influence of surface water with effective in situ filtration and as such required upgrades to meet the ODWS disinfection and log removal criteria. Upgrades have been completed and the system achieves the required log removals and enhanced the disinfection process. The distribution system in Capreol was developed in conjunction with the growth of the industrial development. Some of the pipe network is therefore, relatively old. The frost depths in Capreol extend to extreme depths during cold winters, which impose additional stresses on the integrity of the distribution system. A second line was added to the distribution system so now two 350 mm water mains run in parallel along MR84 to the Town of Capreol. The distribution system is comprised of PVC, cast iron and ductile piping and serves approximately 3300 residents. Water quality throughout the distribution system is monitored through regular sampling in accordance with O. Reg. 170/03.

26 City of Greater Sudbury 19 Non-Compliance with Act, Regulations, Order or Approvals Table 14 provides a summary of any requirements of the Act, Regulations, Orders, or Approval that the system failed to meet during the 2012 reportable period. Table 14 - Blezard Valley/Capreol Wells Supply Item Non-Compliance Measure Taken to Ensure Compliance MOE Inspection Issues NONE N/A MOE Orders NONE N/A 2012 Adverse Water Quality Incident Report Table 15 provides details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre and the Sudbury and District Health Unit. Table 15 - Adverse Water Quality Incidents AWQI # Incident Parameter Result Unit of Corrective Action Corrective Date Measure Action Date /02/02 Background Overgrown CFU/100 ml Resample/Re-test 2012/02/ Background Total Coliform Background Total Coliform 1 CFU/100 ml CFU/100 ml Resample/Re-test 2012/06/04 Resample/Re-test 2012/07/ Background Notification Only Resample/Re-test 2012/07/ Background Total Coliform 1 CFU/100 ml Resample/Re-test 2012/10/17

27 City of Greater Sudbury 20 Annual Summary Tables 16 and 17 provides a summary of the quantities of flow rates with a comparison to rated capacities as listed in the systems Municipal Drinking Water License during the 2012 reportable period. Table 16 Annual Summary (Valley Wells) Total Well "A" Deschene Peak Total Well "B" Kenneth Peak January 17, , , , , February 15, , , , March 19, , , , , April 18, , , , , May 22, , , , , June 19, , , , , , July 26, , , , , August 20, , , , , September 17, , , , October 15, , , , November 18, , , , December 17, , , , , ,026 Total 185,208 Total Well "C" Phillipe Peak Total Well "D" Frost Peak January 28, , , ,834 1,156 1, , February 23, , , ,760 1,543 1, , March 27, , , ,769 1,444 2, , April 26, , , , , , May 27, , , ,395 1,464 1, , June 29, , , ,290 1,076 1, , July 39,178 1,264 1, , ,858 1,544 1, , August 29, , , ,292 1,138 1, , September 25, , , ,713 1,424 1, , October 25, , , ,704 1,023 1, , November 20, , , ,960 1,132 1, , December 25, , , , , , Total 327, ,110

28 City of Greater Sudbury 21 Total Well "E" Notre Dame Peak Total Well "F" Linden Peak January 59,916 1,933 2, , ,212 1,458 2, , February 29,830 1,029 1, , ,208 1,180 2, , March 33,910 1,094 1, , ,451 1,627 2, , April 34,608 1,154 2, , ,242 2,208 2, , May 52,409 1,691 2, , ,061 1,583 2, , June 66,602 2,220 2, , ,670 1,489 2, , July 50,480 1,628 2, , ,875 2,028 2, , August 70,771 2,283 2, , ,660 1,279 2, , September 41,422 1,381 2, , ,075 1,636 2, , October 60,285 1,945 2, , ,487 1,725 2, , November 42,852 1,428 2, , ,530 1,484 2, , December 35,723 1,152 1, , ,268 0 Total 578, ,472 Total Well "G" Pharand Peak Total Well "H" Michelle Peak January 23, , , , , , February 19, , , , , , March 8, , , , , , April 18, , , , , , May 24, , , , , , June 24, , , , , , July 32,388 1,045 1, , ,501 1,016 1, , August 17, , , , , , September 16, , , , , , October 24, , , , , , November 8, , , , , , December 24, , , , , , Total 243, ,033 Total "I" Well Peak Total Well "Q" Chenier Peak January 28, , , N/A N/A N/A N/A N/A N/A February 31,942 1,101 1, , N/A N/A N/A N/A N/A N/A March 28, , , N/A N/A N/A N/A N/A N/A April 13, , , N/A N/A N/A N/A N/A N/A May 30, , , N/A N/A N/A N/A N/A N/A June 25, , , N/A N/A N/A N/A N/A N/A

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